/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.netbeans.modules.editor.settings.storage.spi;

import java.util.Map;
import java.util.Set;
import org.w3c.dom.Document;

/**
 *
 * @author Vita Stejskal
 */
public abstract class StorageWriter<K extends Object, V extends Object> {

    private Map<? extends K, ? extends V> added = null;
    private Set<? extends K> removed = null;
    
    protected StorageWriter() {}
    
    public final void setAdded(Map<? extends K, ? extends V> added) {
        this.added = added;
    }
    
    public final void setRemoved(Set<? extends K> removed) {
        this.removed = removed;
    }
    
    protected final Map<? extends K, ? extends V> getAdded() {
        assert added != null;
        return added;
    }
    
    protected final Set<? extends K> getRemoved() {
        assert removed != null;
        return removed;
    }
    
    public abstract Document getDocument();
}
